20008898

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20633662

約数列:

[1, 2, 7, 13, 14, 17, 26, 29, 34, 58, 91, 119, 182, 203, 221, 223, 238, 377, 406, 442, 446, 493, 754, 986, 1547, 1561, 2639, 2899, 3094, 3122, 3451, 3791, 5278, 5798, 6409, 6467, 6902, 7582, 12818, 12934, 20293, 26537, 40586, 44863, 45269, 49283, 53074, 84071, 89726, 90538, 98566, 109939, 168142, 219878, 344981, 588497, 689962, 769573, 1176994, 1429207, 1539146, 2858414, 10004449, 20008898]

約数ペア:

[(1, 20008898), (2, 10004449), (7, 2858414), (13, 1539146), (14, 1429207), (17, 1176994), (26, 769573), (29, 689962), (34, 588497), (58, 344981), (91, 219878), (119, 168142), (182, 109939), (203, 98566), (221, 90538), (223, 89726), (238, 84071), (377, 53074), (406, 49283), (442, 45269), (446, 44863), (493, 40586), (754, 26537), (986, 20293), (1547, 12934), (1561, 12818), (2639, 7582), (2899, 6902), (3094, 6467), (3122, 6409), (3451, 5798), (3791, 5278)]